/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.io;

/**
 * This DataEntryFilter delegates filtering to a DataEntryFilter for its parent.
 *
 * @author Eric Lafortune
 */
public class DataEntryParentFilter implements DataEntryFilter {
    private final DataEntryFilter dataEntryFilter;

    /**
     * Creates a new ParentFilter.
     * 
     * @param dataEntryFilter the filter that will be applied to the data entry's parent.
     */
    public DataEntryParentFilter(DataEntryFilter dataEntryFilter) {
        this.dataEntryFilter = dataEntryFilter;
    }

    // Implementations for DataEntryFilter.

    public boolean accepts(DataEntry dataEntry) {
        return dataEntry != null && dataEntryFilter.accepts(dataEntry.getParent());
    }
}
